A scheduled lecture Sunday at the Onondaga Historical Association has been moved to Sunday, Oct. 5, at 2 p.m. in the OHA museum. Dennis Connors, OHA curator of history, said Dr. William Meyer of Colgate University had been scheduled to speak at the association this Sunday, the opening lecture of a series on salt production in Syracuse. His talk is called The Solar Technology and Albany Politics of the 19th Century in Syracuse Salt Making. Connors said Meyer had a scheduling conflict.

The next lecture in the series, sponsored by Ameriprise Financial Services, will be presented Sept. 14 at the museum. William Kelly, the state geologist, will talk about Onondagas brine springs and how the natural resource spawned the industry that created the Salt City.

On Sunday, Sept. 21, underwater explorers Jim Kennard and Dan Scoville talk about the challenges of searching for shipwrecks, specifically their presentation entitled, "Discovery of an Early 19th Century Lake Ontario Schooner, " which chronicles the discovery of the sailing ship, Milan, the oldest commercial vessel found in deep water off the southern shore of Lake Ontario. The Milan, a schooner built in 1845, was carrying 1,000 barrels of Onondaga salt from Oswego to Cleveland in 1849 when it sank near Oak Orchard.